well ive posted on this subject before but never really get a straight answer, im putting a peg lowering kit on my bike, my knee doesnt bend as far as it used to so i need more room, im already raising my seat an inch and a half to help this, but i need more. the kit comes in 23, 30, or 50 mm lower. the company recomends the 23 or 30mm but the 50mm would give me the most room, but i worry about shifting problems and catching a peg on the ground and low siding. any advice? heres a pic of the kit. -thanks
The shifting could be a major issue, given that your shifter probably can't be easily adjusted that much. However, once the pegs are on, you will likely be able to find a work around. Just know, the angle might be funky and shifting might feel kind of funny. But, again, if it is the only way in which you can make it work for you (with your knee), then do it.
As far as low siding goes, virtually every bike I have taken to the track (except my ZX10) has scraped pegs. In your case, you might have to back off a little in some corners (but, that is better than not being able to ride). Also, lift your downside foot off the peg so that it can easily fold and there won't be any problems.
Also, no cross thread whining.....